Title:
EXTERNAL SHORT-CIRCUIT DIAGNOSIS METHOD AND BATTERY SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/132502
Kind Code:
A1
Abstract:
This battery system may comprise: a battery pack including a plurality of battery cells; a first main relay including one end connected to a positive electrode of the battery pack; a second main relay including one end connected to a negative electrode of the battery pack; a first link wire connected to the other end of the first main relay; a second link wire connected to the other end of the second main relay; and a battery management system configured to close the first main relay, measure a positive voltage of the battery pack and a negative link voltage of the second link wire, and determine that an external short-circuit has occurred when a voltage difference between the positive voltage of the battery pack and the negative link voltage is less than a predetermined reference voltage.
Inventors:
KIM JINHWAN (KR)
Application Number:
PCT/KR2022/020237
Publication Date:
July 13, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/392; G01R19/00; G01R19/10; G01R19/165; G01R31/327; G01R31/396; G01R31/52
Foreign References:
| JP2007165253A | 2007-06-28 | |||
| KR20220000740A | 2022-01-04 | |||
| JP2013145175A | 2013-07-25 | |||
| JP2021069229A | 2021-04-30 | |||
| US10106036B2 | 2018-10-23 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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